HYDAC FLUIDTECHNIK GMBH

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
F16K VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING3142
 
 
 
F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR 2224
 
 
 
G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES 579
 
 
 
F16D COUPLINGS FOR TRANSMITTING ROTATION 289
 
 
 
B60T VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL 172
 
 
 
F04B POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS 161
 
 
 
F04D NON-POSITIVE-DISPLACEMENT PUMPS173
 
 
 
F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING 148
 
 
 
F25D REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHER SUBCLASS 145
 
 
 
F28F DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION 151

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2018/0039,291 PRESSURE-REGULATING VALVEMay 06, 16Feb 08, 18[F16K, F15B, G05D]
2017/0159,832 PROPORTIONAL PRESSURE CONTROL VALVEMar 05, 15Jun 08, 17[F16K]
2017/0146,036 VALVE MODULAR SYSTEMJun 26, 15May 25, 17[F15B]
2016/0230,900 VALVE DEVICENov 18, 14Aug 11, 16[F16K, F15B]
2014/0325,974 HYDRAULIC HYBRID SYSTEM FOR ROTATORY APPLICATIONSNov 09, 12Nov 06, 14[F15B]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9915276 Valve, in particular pilot-operated proportional pressure control valveMar 05, 13Mar 13, 18[F16K, F15B, G05D, F16H]
9869400 Valve deviceNov 18, 14Jan 16, 18[F16K, F15B]
9810337 Control device for selectively fluidically connecting and disconnecting fluid connection pointsAug 12, 14Nov 07, 17[F16K]
9791061 ValveMay 02, 14Oct 17, 17[F16K, F16B]
9777844 Valve, in particular pilot-operated proportional directional poppet valveJul 18, 13Oct 03, 17[F16K, F15B]
9733651 Proportional pressure-regulating valveApr 08, 14Aug 15, 17[F16K, G05D]
9709180 Directional poppet valveNov 21, 12Jul 18, 17[F16K, F15B]
9677575 Valve for valve assemblyMay 15, 13Jun 13, 17[F15B]
9664291 Valve, in particular pilot-operated proportional directional poppet valveJul 18, 13May 30, 17[F16K, F15B]
9631643 Device together with hydraulic system for actuating least one first hydraulic consumer and at least one second hydraulic consumerMar 13, 13Apr 25, 17[F15B]

View all patents..

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2015/0308,325 DEVICE FOR CONTROLLING THE OPERATION OF A VENTILATOR, WHICH CAN BE DRIVEN BY A HYDRAULIC MOTOR, OF A COOLING DEVICEAbandonedNov 09, 13Oct 29, 15[F01P, F16H]
2012/0180,879 SOLENOID VALVEAbandonedAug 26, 10Jul 19, 12[F16K]
7426884 Circuit arrangementExpiredDec 08, 04Sep 23, 08[F15B]
2006/0054,225 Proportional pressure control valveAbandonedApr 08, 04Mar 16, 06[F15B]
6929739 Cooling deviceExpiredFeb 15, 01Aug 16, 05[F15B]
6786132 Control device for hydraulically operated hoisting mechanismsExpiredJan 23, 03Sep 07, 04[F15B]
6786709 Gear pump with a drive and a hydraulic tankExpiredFeb 26, 02Sep 07, 04[F04C]
6679281 Switching device for a machineExpiredDec 26, 01Jan 20, 04[F15B]
6220142 Manually operated emergency control actuation deviceExpiredApr 28, 99Apr 24, 01[F15B]
5004006 Two-way flow valveExpiredMar 08, 90Apr 02, 91[G05D]
4783051 Magnetic valveExpiredApr 01, 87Nov 08, 88[F16K]
4695232 Central body to which are connected both a driving motor and a pumpExpiredDec 06, 84Sep 22, 87[F04B]
4648809 Device for conveyance of a pressure medium, especially oilExpiredNov 09, 84Mar 10, 87[F04B]
4430220 Apparatus for controlling fluid medium flowExpiredJul 29, 82Feb 07, 84[B01D]
4420981 Manometer switching valveExpiredMay 11, 82Dec 20, 83[G01L]

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